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Commit | Line | Data |
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2c85b752 MS |
1 | /* |
2 | * "$Id$" | |
3 | * | |
4 | * TLS support code for CUPS on OS X. | |
5 | * | |
7e86f2f6 | 6 | * Copyright 2007-2014 by Apple Inc. |
2c85b752 MS |
7 | * Copyright 1997-2007 by Easy Software Products, all rights reserved. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
10 | * property of Apple Inc. and are protected by Federal copyright | |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
14 | * | |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | */ | |
17 | ||
dafebafd | 18 | /**** This file is included from http.c ****/ |
2c85b752 MS |
19 | |
20 | /* | |
dafebafd | 21 | * Include necessary headers... |
2c85b752 MS |
22 | */ |
23 | ||
dafebafd MS |
24 | #include <spawn.h> |
25 | ||
26 | extern char **environ; | |
27 | ||
28 | ||
c0459938 MS |
29 | /* |
30 | * Local globals... | |
31 | */ | |
32 | ||
eb66bc71 | 33 | #ifdef HAVE_SECKEYCHAINOPEN |
c0459938 MS |
34 | static int tls_auto_create = 0; |
35 | /* Auto-create self-signed certs? */ | |
36 | static char *tls_common_name = NULL; | |
37 | /* Default common name */ | |
41e0907c MS |
38 | static SecKeychainRef tls_keychain = NULL; |
39 | /* Server cert keychain */ | |
40 | static char *tls_keypath = NULL; | |
41 | /* Server cert keychain path */ | |
42 | static _cups_mutex_t tls_mutex = _CUPS_MUTEX_INITIALIZER; | |
43 | /* Mutex for keychain/certs */ | |
eb66bc71 | 44 | #endif /* HAVE_SECKEYCHAINOPEN */ |
c0459938 MS |
45 | |
46 | ||
dafebafd MS |
47 | /* |
48 | * Local functions... | |
49 | */ | |
2c85b752 | 50 | |
eb66bc71 | 51 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 52 | static CFArrayRef http_cdsa_copy_server(const char *common_name); |
eb66bc71 | 53 | #endif /* HAVE_SECKEYCHAINOPEN */ |
005f7f1f | 54 | static const char *http_cdsa_default_path(char *buffer, size_t bufsize); |
41e0907c | 55 | static OSStatus http_cdsa_read(SSLConnectionRef connection, void *data, size_t *dataLength); |
88f1e9c8 | 56 | static int http_cdsa_set_credentials(http_t *http); |
41e0907c | 57 | static OSStatus http_cdsa_write(SSLConnectionRef connection, const void *data, size_t *dataLength); |
2c85b752 MS |
58 | |
59 | ||
3af9ac9e MS |
60 | /* |
61 | * 'cupsMakeServerCredentials()' - Make a self-signed certificate and private key pair. | |
62 | * | |
63 | * @since CUPS 2.0@ | |
64 | */ | |
65 | ||
66 | int /* O - 1 on success, 0 on failure */ | |
67 | cupsMakeServerCredentials( | |
f93b32b6 | 68 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
69 | const char *common_name, /* I - Common name */ |
70 | int num_alt_names, /* I - Number of subject alternate names */ | |
71 | const char **alt_names, /* I - Subject Alternate Names */ | |
72 | time_t expiration_date) /* I - Expiration date */ | |
73 | { | |
eb66bc71 | 74 | #if defined(HAVE_SECGENERATESELFSIGNEDCERTIFICATE) && defined(HAVE_SECKEYCHAINOPEN) |
f93b32b6 | 75 | char filename[1024]; /* Default keychain path */ |
41e0907c MS |
76 | int status = 0; /* Return status */ |
77 | OSStatus err; /* Error code (if any) */ | |
78 | CFStringRef cfcommon_name = NULL; | |
79 | /* CF string for server name */ | |
80 | SecIdentityRef ident = NULL; /* Identity */ | |
81 | SecKeyRef publicKey = NULL, | |
82 | /* Public key */ | |
83 | privateKey = NULL; | |
84 | /* Private key */ | |
85 | CFMutableDictionaryRef keyParams = NULL; | |
86 | /* Key generation parameters */ | |
87 | ||
88 | ||
172bdf5d MS |
89 | DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date)); |
90 | ||
3af9ac9e MS |
91 | (void)num_alt_names; |
92 | (void)alt_names; | |
93 | (void)expiration_date; | |
94 | ||
f93b32b6 | 95 | if (!path) |
005f7f1f | 96 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 MS |
97 | |
98 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
41e0907c MS |
99 | if (!cfcommon_name) |
100 | goto cleanup; | |
101 | ||
102 | /* | |
103 | * Create a public/private key pair... | |
104 | */ | |
105 | ||
f93b32b6 | 106 | keyParams = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks); |
41e0907c MS |
107 | if (!keyParams) |
108 | goto cleanup; | |
109 | ||
110 | CFDictionaryAddValue(keyParams, kSecAttrKeyType, kSecAttrKeyTypeRSA); | |
111 | CFDictionaryAddValue(keyParams, kSecAttrKeySizeInBits, CFSTR("2048")); | |
f93b32b6 | 112 | CFDictionaryAddValue(keyParams, kSecAttrLabel, CFSTR("CUPS Self-Signed Certificate")); |
41e0907c MS |
113 | |
114 | err = SecKeyGeneratePair(keyParams, &publicKey, &privateKey); | |
115 | if (err != noErr) | |
116 | goto cleanup; | |
117 | ||
118 | /* | |
119 | * Create a self-signed certificate using the public/private key pair... | |
120 | */ | |
121 | ||
122 | CFIndex usageInt = kSecKeyUsageAll; | |
123 | CFNumberRef usage = CFNumberCreate(alloc, kCFNumberCFIndexType, &usageInt); | |
124 | CFDictionaryRef certParams = CFDictionaryCreateMutable(kCFAllocatorDefault, | |
125 | kSecCSRBasicContraintsPathLen, CFINT(0), kSecSubjectAltName, cfcommon_name, kSecCertificateKeyUsage, usage, NULL, NULL); | |
126 | CFRelease(usage); | |
127 | ||
128 | const void *ca_o[] = { kSecOidOrganization, CFSTR("") }; | |
129 | const void *ca_cn[] = { kSecOidCommonName, cfcommon_name }; | |
130 | CFArrayRef ca_o_dn = CFArrayCreate(kCFAllocatorDefault, ca_o, 2, NULL); | |
131 | CFArrayRef ca_cn_dn = CFArrayCreate(kCFAllocatorDefault, ca_cn, 2, NULL); | |
132 | const void *ca_dn_array[2]; | |
133 | ||
134 | ca_dn_array[0] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_o_dn, 1, NULL); | |
135 | ca_dn_array[1] = CFArrayCreate(kCFAllocatorDefault, (const void **)&ca_cn_dn, 1, NULL); | |
136 | ||
137 | CFArrayRef subject = CFArrayCreate(kCFAllocatorDefault, ca_dn_array, 2, NULL); | |
138 | SecCertificateRef cert = SecGenerateSelfSignedCertificate(subject, certParams, publicKey, privateKey); | |
139 | CFRelease(subject); | |
140 | CFRelease(certParams); | |
141 | ||
142 | if (!cert) | |
143 | goto cleanup; | |
144 | ||
145 | ident = SecIdentityCreate(kCFAllocatorDefault, cert, privateKey); | |
146 | ||
147 | if (ident) | |
148 | status = 1; | |
149 | ||
150 | /* | |
151 | * Cleanup and return... | |
152 | */ | |
153 | ||
154 | cleanup: | |
155 | ||
156 | if (cfcommon_name) | |
157 | CFRelease(cfcommon_name); | |
158 | ||
159 | if (keyParams) | |
160 | CFRelease(keyParams); | |
161 | ||
162 | if (ident) | |
163 | CFRelease(ident); | |
164 | ||
165 | if (cert) | |
166 | CFRelease(cert); | |
167 | ||
168 | if (publicKey) | |
169 | CFRelease(publicKey); | |
170 | ||
171 | if (privateKey) | |
172 | CFRelease(publicKey); | |
173 | ||
174 | return (status); | |
175 | ||
eb66bc71 | 176 | #else /* !(HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN) */ |
41e0907c | 177 | int pid, /* Process ID of command */ |
7d58a105 MS |
178 | status, /* Status of command */ |
179 | i; /* Looping var */ | |
41e0907c MS |
180 | char command[1024], /* Command */ |
181 | *argv[4], /* Command-line arguments */ | |
7d58a105 MS |
182 | *envp[1000], /* Environment variables */ |
183 | days[32], /* CERTTOOL_EXPIRATION_DAYS env var */ | |
41e0907c | 184 | keychain[1024], /* Keychain argument */ |
f93b32b6 MS |
185 | infofile[1024], /* Type-in information for cert */ |
186 | filename[1024]; /* Default keychain path */ | |
41e0907c MS |
187 | cups_file_t *fp; /* Seed/info file */ |
188 | ||
189 | ||
172bdf5d MS |
190 | DEBUG_printf(("cupsMakeServerCredentials(path=\"%s\", common_name=\"%s\", num_alt_names=%d, alt_names=%p, expiration_date=%d)", path, common_name, num_alt_names, alt_names, (int)expiration_date)); |
191 | ||
41e0907c MS |
192 | (void)num_alt_names; |
193 | (void)alt_names; | |
41e0907c | 194 | |
f93b32b6 | 195 | if (!path) |
005f7f1f | 196 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 197 | |
41e0907c MS |
198 | /* |
199 | * Run the "certtool" command to generate a self-signed certificate... | |
200 | */ | |
201 | ||
202 | if (!cupsFileFind("certtool", getenv("PATH"), 1, command, sizeof(command))) | |
203 | return (-1); | |
204 | ||
205 | /* | |
206 | * Create a file with the certificate information fields... | |
207 | * | |
208 | * Note: This assumes that the default questions are asked by the certtool | |
209 | * command... | |
210 | */ | |
211 | ||
212 | if ((fp = cupsTempFile2(infofile, sizeof(infofile))) == NULL) | |
213 | return (-1); | |
214 | ||
215 | cupsFilePrintf(fp, | |
216 | "CUPS Self-Signed Certificate\n" | |
217 | /* Enter key and certificate label */ | |
218 | "r\n" /* Generate RSA key pair */ | |
219 | "2048\n" /* Key size in bits */ | |
220 | "y\n" /* OK (y = yes) */ | |
221 | "b\n" /* Usage (b=signing/encryption) */ | |
222 | "s\n" /* Sign with SHA1 */ | |
223 | "y\n" /* OK (y = yes) */ | |
224 | "%s\n" /* Common name */ | |
225 | "\n" /* Country (default) */ | |
226 | "\n" /* Organization (default) */ | |
227 | "\n" /* Organizational unit (default) */ | |
228 | "\n" /* State/Province (default) */ | |
229 | "\n" /* Email address */ | |
230 | "y\n", /* OK (y = yes) */ | |
231 | common_name); | |
232 | cupsFileClose(fp); | |
233 | ||
234 | snprintf(keychain, sizeof(keychain), "k=%s", path); | |
235 | ||
236 | argv[0] = "certtool"; | |
237 | argv[1] = "c"; | |
238 | argv[2] = keychain; | |
239 | argv[3] = NULL; | |
240 | ||
7d58a105 MS |
241 | snprintf(days, sizeof(days), "CERTTOOL_EXPIRATION_DAYS=%d", (int)((expiration_date - time(NULL) + 86399) / 86400)); |
242 | envp[0] = days; | |
243 | for (i = 0; i < (int)(sizeof(envp) / sizeof(envp[0]) - 2) && environ[i]; i ++) | |
244 | envp[i + 1] = environ[i]; | |
245 | envp[i] = NULL; | |
246 | ||
41e0907c MS |
247 | posix_spawn_file_actions_t actions; /* File actions */ |
248 | ||
249 | posix_spawn_file_actions_init(&actions); | |
250 | posix_spawn_file_actions_addclose(&actions, 0); | |
251 | posix_spawn_file_actions_addopen(&actions, 0, infofile, O_RDONLY, 0); | |
f93b32b6 MS |
252 | posix_spawn_file_actions_addclose(&actions, 1); |
253 | posix_spawn_file_actions_addopen(&actions, 1, "/dev/null", O_WRONLY, 0); | |
254 | posix_spawn_file_actions_addclose(&actions, 2); | |
255 | posix_spawn_file_actions_addopen(&actions, 2, "/dev/null", O_WRONLY, 0); | |
41e0907c | 256 | |
7d58a105 | 257 | if (posix_spawn(&pid, command, &actions, NULL, argv, envp)) |
41e0907c MS |
258 | { |
259 | unlink(infofile); | |
260 | return (-1); | |
261 | } | |
262 | ||
263 | posix_spawn_file_actions_destroy(&actions); | |
264 | ||
265 | unlink(infofile); | |
266 | ||
267 | while (waitpid(pid, &status, 0) < 0) | |
268 | if (errno != EINTR) | |
269 | { | |
270 | status = -1; | |
271 | break; | |
272 | } | |
273 | ||
274 | return (!status); | |
eb66bc71 | 275 | #endif /* HAVE_SECGENERATESELFSIGNEDCERTIFICATE && HAVE_SECKEYCHAINOPEN */ |
3af9ac9e MS |
276 | } |
277 | ||
278 | ||
279 | /* | |
280 | * 'cupsSetServerCredentials()' - Set the default server credentials. | |
281 | * | |
282 | * Note: The server credentials are used by all threads in the running process. | |
283 | * This function is threadsafe. | |
284 | * | |
285 | * @since CUPS 2.0@ | |
286 | */ | |
287 | ||
288 | int /* O - 1 on success, 0 on failure */ | |
289 | cupsSetServerCredentials( | |
f93b32b6 | 290 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
3af9ac9e MS |
291 | const char *common_name, /* I - Default common name for server */ |
292 | int auto_create) /* I - 1 = automatically create self-signed certificates */ | |
293 | { | |
a27a134a MS |
294 | DEBUG_printf(("cupsSetServerCredentials(path=\"%s\", common_name=\"%s\", auto_create=%d)", path, common_name, auto_create)); |
295 | ||
eb66bc71 | 296 | #ifdef HAVE_SECKEYCHAINOPEN |
f93b32b6 | 297 | char filename[1024]; /* Filename for keychain */ |
c0459938 | 298 | SecKeychainRef keychain = NULL;/* Temporary keychain */ |
3af9ac9e | 299 | |
c0459938 | 300 | |
f93b32b6 | 301 | if (!path) |
005f7f1f | 302 | path = http_cdsa_default_path(filename, sizeof(filename)); |
f93b32b6 | 303 | |
c0459938 MS |
304 | if (SecKeychainOpen(path, &keychain) != noErr) |
305 | { | |
306 | /* TODO: Set cups last error string */ | |
a27a134a | 307 | DEBUG_puts("1cupsSetServerCredentials: Unable to open keychain, returning 0."); |
c0459938 MS |
308 | return (0); |
309 | } | |
310 | ||
311 | _cupsMutexLock(&tls_mutex); | |
312 | ||
313 | /* | |
314 | * Close any keychain that is currently open... | |
315 | */ | |
316 | ||
317 | if (tls_keychain) | |
318 | CFRelease(tls_keychain); | |
319 | ||
41e0907c MS |
320 | if (tls_keypath) |
321 | _cupsStrFree(tls_keypath); | |
322 | ||
c0459938 MS |
323 | if (tls_common_name) |
324 | _cupsStrFree(tls_common_name); | |
325 | ||
326 | /* | |
327 | * Save the new keychain... | |
328 | */ | |
329 | ||
330 | tls_keychain = keychain; | |
41e0907c | 331 | tls_keypath = _cupsStrAlloc(path); |
c0459938 MS |
332 | tls_auto_create = auto_create; |
333 | tls_common_name = _cupsStrAlloc(common_name); | |
334 | ||
335 | _cupsMutexUnlock(&tls_mutex); | |
336 | ||
a27a134a | 337 | DEBUG_puts("1cupsSetServerCredentials: Opened keychain, returning 1."); |
c0459938 | 338 | return (1); |
eb66bc71 MS |
339 | |
340 | #else | |
a27a134a | 341 | DEBUG_puts("1cupsSetServerCredentials: No keychain support compiled in, returning 0."); |
eb66bc71 MS |
342 | return (0); |
343 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
3af9ac9e MS |
344 | } |
345 | ||
2c85b752 MS |
346 | |
347 | /* | |
348 | * 'httpCopyCredentials()' - Copy the credentials associated with the peer in | |
349 | * an encrypted connection. | |
350 | * | |
351 | * @since CUPS 1.5/OS X 10.7@ | |
352 | */ | |
353 | ||
354 | int /* O - Status of call (0 = success) */ | |
355 | httpCopyCredentials( | |
356 | http_t *http, /* I - Connection to server */ | |
357 | cups_array_t **credentials) /* O - Array of credentials */ | |
358 | { | |
359 | OSStatus error; /* Error code */ | |
360 | SecTrustRef peerTrust; /* Peer trust reference */ | |
361 | CFIndex count; /* Number of credentials */ | |
362 | SecCertificateRef secCert; /* Certificate reference */ | |
363 | CFDataRef data; /* Certificate data */ | |
364 | int i; /* Looping var */ | |
365 | ||
366 | ||
376d7c69 MS |
367 | DEBUG_printf(("httpCopyCredentials(http=%p, credentials=%p)", http, credentials)); |
368 | ||
2c85b752 MS |
369 | if (credentials) |
370 | *credentials = NULL; | |
371 | ||
372 | if (!http || !http->tls || !credentials) | |
373 | return (-1); | |
374 | ||
375 | if (!(error = SSLCopyPeerTrust(http->tls, &peerTrust)) && peerTrust) | |
376 | { | |
376d7c69 MS |
377 | DEBUG_printf(("2httpCopyCredentials: Peer provided %d certificates.", (int)SecTrustGetCertificateCount(peerTrust))); |
378 | ||
2c85b752 MS |
379 | if ((*credentials = cupsArrayNew(NULL, NULL)) != NULL) |
380 | { | |
381 | count = SecTrustGetCertificateCount(peerTrust); | |
382 | ||
383 | for (i = 0; i < count; i ++) | |
384 | { | |
385 | secCert = SecTrustGetCertificateAtIndex(peerTrust, i); | |
376d7c69 MS |
386 | |
387 | #ifdef DEBUG | |
388 | CFStringRef cf_name = SecCertificateCopySubjectSummary(secCert); | |
389 | char name[1024]; | |
390 | if (cf_name) | |
391 | CFStringGetCString(cf_name, name, sizeof(name), kCFStringEncodingUTF8); | |
392 | else | |
393 | strlcpy(name, "unknown", sizeof(name)); | |
394 | ||
395 | DEBUG_printf(("2httpCopyCredentials: Certificate %d name is \"%s\".", i, name)); | |
396 | #endif /* DEBUG */ | |
397 | ||
88f1e9c8 | 398 | if ((data = SecCertificateCopyData(secCert)) != NULL) |
2c85b752 | 399 | { |
376d7c69 MS |
400 | DEBUG_printf(("2httpCopyCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); |
401 | ||
7e86f2f6 | 402 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); |
2c85b752 MS |
403 | CFRelease(data); |
404 | } | |
405 | } | |
406 | } | |
407 | ||
408 | CFRelease(peerTrust); | |
409 | } | |
410 | ||
411 | return (error); | |
412 | } | |
413 | ||
414 | ||
9653cfdf MS |
415 | /* |
416 | * 'http_cdsa_create_credential()' - Create a single credential in the internal format. | |
417 | */ | |
418 | ||
419 | static SecCertificateRef /* O - Certificate */ | |
420 | http_cdsa_create_credential( | |
421 | http_credential_t *credential) /* I - Credential */ | |
422 | { | |
423 | if (!credential) | |
424 | return (NULL); | |
425 | ||
426 | return (SecCertificateCreateWithBytes(kCFAllocatorDefault, credential->data, (CFIndex)credential->datalen)); | |
427 | } | |
428 | ||
429 | ||
2c85b752 MS |
430 | /* |
431 | * '_httpCreateCredentials()' - Create credentials in the internal format. | |
432 | */ | |
433 | ||
434 | http_tls_credentials_t /* O - Internal credentials */ | |
435 | _httpCreateCredentials( | |
436 | cups_array_t *credentials) /* I - Array of credentials */ | |
437 | { | |
438 | CFMutableArrayRef peerCerts; /* Peer credentials reference */ | |
439 | SecCertificateRef secCert; /* Certificate reference */ | |
2c85b752 MS |
440 | http_credential_t *credential; /* Credential data */ |
441 | ||
442 | ||
443 | if (!credentials) | |
444 | return (NULL); | |
445 | ||
446 | if ((peerCerts = CFArrayCreateMutable(kCFAllocatorDefault, | |
447 | cupsArrayCount(credentials), | |
448 | &kCFTypeArrayCallBacks)) == NULL) | |
449 | return (NULL); | |
450 | ||
451 | for (credential = (http_credential_t *)cupsArrayFirst(credentials); | |
452 | credential; | |
453 | credential = (http_credential_t *)cupsArrayNext(credentials)) | |
454 | { | |
9653cfdf | 455 | if ((secCert = http_cdsa_create_credential(credential)) != NULL) |
2c85b752 | 456 | { |
9653cfdf MS |
457 | CFArrayAppendValue(peerCerts, secCert); |
458 | CFRelease(secCert); | |
2c85b752 MS |
459 | } |
460 | } | |
461 | ||
462 | return (peerCerts); | |
463 | } | |
464 | ||
465 | ||
3af9ac9e | 466 | /* |
524c65e6 | 467 | * 'httpCredentialsAreValidForName()' - Return whether the credentials are valid for the given name. |
3af9ac9e MS |
468 | * |
469 | * @since CUPS 2.0@ | |
470 | */ | |
471 | ||
524c65e6 MS |
472 | int /* O - 1 if valid, 0 otherwise */ |
473 | httpCredentialsAreValidForName( | |
474 | cups_array_t *credentials, /* I - Credentials */ | |
475 | const char *common_name) /* I - Name to check */ | |
476 | { | |
477 | SecCertificateRef secCert; /* Certificate reference */ | |
478 | CFStringRef cfcert_name = NULL; | |
479 | /* Certificate's common name (CF string) */ | |
480 | char cert_name[256]; /* Certificate's common name (C string) */ | |
481 | int valid = 1; /* Valid name? */ | |
482 | ||
483 | ||
484 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
485 | return (0); | |
486 | ||
487 | /* | |
488 | * Compare the common names... | |
489 | */ | |
490 | ||
491 | if ((cfcert_name = SecCertificateCopySubjectSummary(secCert)) == NULL) | |
492 | { | |
493 | /* | |
494 | * Can't get common name, cannot be valid... | |
495 | */ | |
496 | ||
497 | valid = 0; | |
498 | } | |
499 | else if (CFStringGetCString(cfcert_name, cert_name, sizeof(cert_name), kCFStringEncodingUTF8) && | |
500 | _cups_strcasecmp(common_name, cert_name)) | |
501 | { | |
502 | /* | |
503 | * Not an exact match for the common name, check for wildcard certs... | |
504 | */ | |
505 | ||
506 | const char *domain = strchr(common_name, '.'); | |
507 | /* Domain in common name */ | |
508 | ||
509 | if (strncmp(cert_name, "*.", 2) || !domain || _cups_strcasecmp(domain, cert_name + 1)) | |
510 | { | |
511 | /* | |
512 | * Not a wildcard match. | |
513 | */ | |
514 | ||
515 | /* TODO: Check subject alternate names */ | |
516 | valid = 0; | |
517 | } | |
518 | } | |
519 | ||
520 | if (cfcert_name) | |
521 | CFRelease(cfcert_name); | |
522 | ||
523 | CFRelease(secCert); | |
524 | ||
525 | return (valid); | |
526 | } | |
527 | ||
528 | ||
529 | /* | |
530 | * 'httpCredentialsGetTrust()' - Return the trust of credentials. | |
531 | * | |
532 | * @since CUPS 2.0@ | |
533 | */ | |
534 | ||
535 | http_trust_t /* O - Level of trust */ | |
536 | httpCredentialsGetTrust( | |
376d7c69 MS |
537 | cups_array_t *credentials, /* I - Credentials */ |
538 | const char *common_name) /* I - Common name for trust lookup */ | |
3af9ac9e | 539 | { |
9653cfdf | 540 | SecCertificateRef secCert; /* Certificate reference */ |
524c65e6 MS |
541 | http_trust_t trust = HTTP_TRUST_OK; |
542 | /* Trusted? */ | |
376d7c69 | 543 | cups_array_t *tcreds = NULL; /* Trusted credentials */ |
9653cfdf MS |
544 | _cups_globals_t *cg = _cupsGlobals(); |
545 | /* Per-thread globals */ | |
3af9ac9e | 546 | |
9653cfdf | 547 | |
376d7c69 | 548 | if (!common_name) |
524c65e6 | 549 | return (HTTP_TRUST_UNKNOWN); |
376d7c69 | 550 | |
9653cfdf | 551 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
524c65e6 | 552 | return (HTTP_TRUST_UNKNOWN); |
9653cfdf | 553 | |
376d7c69 | 554 | /* |
88f1e9c8 | 555 | * Look this common name up in the default keychains... |
376d7c69 MS |
556 | */ |
557 | ||
88f1e9c8 | 558 | httpLoadCredentials(NULL, &tcreds, common_name); |
376d7c69 MS |
559 | |
560 | if (tcreds) | |
561 | { | |
562 | char credentials_str[1024], /* String for incoming credentials */ | |
563 | tcreds_str[1024]; /* String for saved credentials */ | |
564 | ||
565 | httpCredentialsString(credentials, credentials_str, sizeof(credentials_str)); | |
566 | httpCredentialsString(tcreds, tcreds_str, sizeof(tcreds_str)); | |
567 | ||
568 | if (strcmp(credentials_str, tcreds_str)) | |
569 | { | |
570 | /* | |
571 | * Credentials don't match, let's look at the expiration date of the new | |
572 | * credentials and allow if the new ones have a later expiration... | |
573 | */ | |
574 | ||
575 | if (httpCredentialsGetExpiration(credentials) <= httpCredentialsGetExpiration(tcreds) || | |
524c65e6 | 576 | !httpCredentialsAreValidForName(credentials, common_name)) |
376d7c69 MS |
577 | { |
578 | /* | |
579 | * Either the new credentials are not newly issued, or the common name | |
580 | * does not match the issued certificate... | |
581 | */ | |
582 | ||
524c65e6 | 583 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 584 | } |
524c65e6 | 585 | else if (httpCredentialsGetExpiration(tcreds) < time(NULL)) |
376d7c69 MS |
586 | { |
587 | /* | |
524c65e6 | 588 | * Save the renewed credentials... |
376d7c69 MS |
589 | */ |
590 | ||
524c65e6 MS |
591 | trust = HTTP_TRUST_RENEWED; |
592 | ||
593 | httpSaveCredentials(NULL, credentials, common_name); | |
376d7c69 MS |
594 | } |
595 | } | |
596 | ||
597 | httpFreeCredentials(tcreds); | |
598 | } | |
f51f3773 | 599 | else if (cg->validate_certs && !httpCredentialsAreValidForName(credentials, common_name)) |
524c65e6 | 600 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 601 | |
9653cfdf | 602 | if (!cg->expired_certs && !SecCertificateIsValid(secCert, CFAbsoluteTimeGetCurrent())) |
524c65e6 | 603 | trust = HTTP_TRUST_EXPIRED; |
25731360 | 604 | else if (!cg->any_root && cupsArrayCount(credentials) == 1) |
524c65e6 | 605 | trust = HTTP_TRUST_INVALID; |
376d7c69 | 606 | |
9653cfdf MS |
607 | CFRelease(secCert); |
608 | ||
524c65e6 | 609 | return (trust); |
3af9ac9e MS |
610 | } |
611 | ||
612 | ||
613 | /* | |
614 | * 'httpCredentialsGetExpiration()' - Return the expiration date of the credentials. | |
615 | * | |
616 | * @since CUPS 2.0@ | |
617 | */ | |
618 | ||
619 | time_t /* O - Expiration date of credentials */ | |
620 | httpCredentialsGetExpiration( | |
621 | cups_array_t *credentials) /* I - Credentials */ | |
622 | { | |
9653cfdf MS |
623 | SecCertificateRef secCert; /* Certificate reference */ |
624 | time_t expiration; /* Expiration date */ | |
3af9ac9e | 625 | |
9653cfdf MS |
626 | |
627 | if ((secCert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) | |
628 | return (0); | |
629 | ||
376d7c69 | 630 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); |
9653cfdf MS |
631 | |
632 | CFRelease(secCert); | |
633 | ||
634 | return (expiration); | |
3af9ac9e MS |
635 | } |
636 | ||
637 | ||
72d05bc9 MS |
638 | /* |
639 | * 'httpCredentialsString()' - Return a string representing the credentials. | |
640 | * | |
641 | * @since CUPS 2.0@ | |
642 | */ | |
643 | ||
644 | size_t /* O - Total size of credentials string */ | |
645 | httpCredentialsString( | |
646 | cups_array_t *credentials, /* I - Credentials */ | |
647 | char *buffer, /* I - Buffer or @code NULL@ */ | |
648 | size_t bufsize) /* I - Size of buffer */ | |
649 | { | |
376d7c69 | 650 | http_credential_t *first; /* First certificate */ |
9653cfdf | 651 | SecCertificateRef secCert; /* Certificate reference */ |
9653cfdf MS |
652 | |
653 | ||
376d7c69 MS |
654 | DEBUG_printf(("httpCredentialsString(credentials=%p, buffer=%p, bufsize=" CUPS_LLFMT ")", credentials, buffer, CUPS_LLCAST bufsize)); |
655 | ||
9653cfdf MS |
656 | if (!buffer) |
657 | return (0); | |
72d05bc9 MS |
658 | |
659 | if (buffer && bufsize > 0) | |
660 | *buffer = '\0'; | |
661 | ||
376d7c69 MS |
662 | if ((first = (http_credential_t *)cupsArrayFirst(credentials)) != NULL && |
663 | (secCert = http_cdsa_create_credential(first)) != NULL) | |
9653cfdf | 664 | { |
376d7c69 MS |
665 | CFStringRef cf_name; /* CF common name string */ |
666 | char name[256]; /* Common name associated with cert */ | |
667 | time_t expiration; /* Expiration date of cert */ | |
668 | _cups_md5_state_t md5_state; /* MD5 state */ | |
669 | unsigned char md5_digest[16]; /* MD5 result */ | |
670 | ||
671 | if ((cf_name = SecCertificateCopySubjectSummary(secCert)) != NULL) | |
9653cfdf | 672 | { |
376d7c69 MS |
673 | CFStringGetCString(cf_name, name, (CFIndex)sizeof(name), kCFStringEncodingUTF8); |
674 | CFRelease(cf_name); | |
9653cfdf | 675 | } |
376d7c69 MS |
676 | else |
677 | strlcpy(name, "unknown", sizeof(name)); | |
678 | ||
679 | expiration = (time_t)(SecCertificateNotValidAfter(secCert) + kCFAbsoluteTimeIntervalSince1970); | |
680 | ||
681 | _cupsMD5Init(&md5_state); | |
682 | _cupsMD5Append(&md5_state, first->data, (int)first->datalen); | |
683 | _cupsMD5Finish(&md5_state, md5_digest); | |
684 | ||
685 | snprintf(buffer, bufsize, "%s / %s / %02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X", name, httpGetDateString(expiration), md5_digest[0], md5_digest[1], md5_digest[2], md5_digest[3], md5_digest[4], md5_digest[5], md5_digest[6], md5_digest[7], md5_digest[8], md5_digest[9], md5_digest[10], md5_digest[11], md5_digest[12], md5_digest[13], md5_digest[14], md5_digest[15]); | |
9653cfdf MS |
686 | |
687 | CFRelease(secCert); | |
688 | } | |
689 | ||
376d7c69 MS |
690 | DEBUG_printf(("1httpCredentialsString: Returning \"%s\".", buffer)); |
691 | ||
9653cfdf | 692 | return (strlen(buffer)); |
72d05bc9 MS |
693 | } |
694 | ||
695 | ||
2c85b752 MS |
696 | /* |
697 | * '_httpFreeCredentials()' - Free internal credentials. | |
698 | */ | |
699 | ||
700 | void | |
701 | _httpFreeCredentials( | |
702 | http_tls_credentials_t credentials) /* I - Internal credentials */ | |
703 | { | |
704 | if (!credentials) | |
705 | return; | |
706 | ||
707 | CFRelease(credentials); | |
708 | } | |
709 | ||
710 | ||
72d05bc9 MS |
711 | /* |
712 | * 'httpLoadCredentials()' - Load X.509 credentials from a keychain file. | |
713 | * | |
714 | * @since CUPS 2.0@ | |
715 | */ | |
716 | ||
dafebafd | 717 | int /* O - 0 on success, -1 on error */ |
72d05bc9 | 718 | httpLoadCredentials( |
f93b32b6 | 719 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
720 | cups_array_t **credentials, /* IO - Credentials */ |
721 | const char *common_name) /* I - Common name for credentials */ | |
722 | { | |
88f1e9c8 | 723 | #ifdef HAVE_SECKEYCHAINOPEN |
dafebafd | 724 | OSStatus err; /* Error info */ |
88f1e9c8 | 725 | char filename[1024]; /* Filename for keychain */ |
dafebafd MS |
726 | SecKeychainRef keychain = NULL;/* Keychain reference */ |
727 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
88f1e9c8 MS |
728 | SecCertificateRef cert = NULL; /* Certificate */ |
729 | CFDataRef data; /* Certificate data */ | |
dafebafd MS |
730 | SecPolicyRef policy = NULL; /* Policy ref */ |
731 | CFStringRef cfcommon_name = NULL; | |
732 | /* Server name */ | |
733 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
734 | CFArrayRef list = NULL; /* Keychain list */ | |
735 | ||
736 | ||
88f1e9c8 MS |
737 | DEBUG_printf(("httpLoadCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
738 | ||
739 | if (!credentials) | |
740 | return (-1); | |
741 | ||
742 | *credentials = NULL; | |
743 | ||
744 | if (!path) | |
005f7f1f | 745 | path = http_cdsa_default_path(filename, sizeof(filename)); |
88f1e9c8 | 746 | |
88f1e9c8 | 747 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
dafebafd MS |
748 | goto cleanup; |
749 | ||
750 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); | |
751 | ||
752 | policy = SecPolicyCreateSSL(1, cfcommon_name); | |
753 | ||
754 | if (cfcommon_name) | |
755 | CFRelease(cfcommon_name); | |
756 | ||
757 | if (!policy) | |
758 | goto cleanup; | |
759 | ||
760 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
761 | goto cleanup; | |
762 | ||
88f1e9c8 | 763 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks); |
dafebafd | 764 | |
88f1e9c8 | 765 | CFDictionaryAddValue(query, kSecClass, kSecClassCertificate); |
dafebafd MS |
766 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); |
767 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
768 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
769 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
770 | ||
771 | CFRelease(list); | |
772 | ||
88f1e9c8 | 773 | err = SecItemCopyMatching(query, (CFTypeRef *)&cert); |
dafebafd MS |
774 | |
775 | if (err) | |
776 | goto cleanup; | |
777 | ||
88f1e9c8 | 778 | if (CFGetTypeID(cert) != SecCertificateGetTypeID()) |
dafebafd MS |
779 | goto cleanup; |
780 | ||
88f1e9c8 MS |
781 | if ((data = SecCertificateCopyData(cert)) != NULL) |
782 | { | |
783 | DEBUG_printf(("1httpLoadCredentials: Adding %d byte certificate blob.", (int)CFDataGetLength(data))); | |
784 | ||
785 | *credentials = cupsArrayNew(NULL, NULL); | |
786 | httpAddCredential(*credentials, CFDataGetBytePtr(data), (size_t)CFDataGetLength(data)); | |
787 | CFRelease(data); | |
788 | } | |
dafebafd MS |
789 | |
790 | cleanup : | |
791 | ||
792 | if (keychain) | |
793 | CFRelease(keychain); | |
794 | if (search) | |
795 | CFRelease(search); | |
88f1e9c8 MS |
796 | if (cert) |
797 | CFRelease(cert); | |
dafebafd MS |
798 | if (policy) |
799 | CFRelease(policy); | |
800 | if (query) | |
801 | CFRelease(query); | |
802 | ||
88f1e9c8 MS |
803 | DEBUG_printf(("1httpLoadCredentials: Returning %d.", *credentials ? 0 : -1)); |
804 | ||
805 | return (*credentials ? 0 : -1); | |
806 | ||
807 | #else | |
808 | (void)path; | |
809 | (void)credentials; | |
810 | (void)common_name; | |
811 | ||
812 | return (-1); | |
813 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
72d05bc9 MS |
814 | } |
815 | ||
816 | ||
72d05bc9 MS |
817 | /* |
818 | * 'httpSaveCredentials()' - Save X.509 credentials to a keychain file. | |
819 | * | |
820 | * @since CUPS 2.0@ | |
821 | */ | |
822 | ||
823 | int /* O - -1 on error, 0 on success */ | |
824 | httpSaveCredentials( | |
f93b32b6 | 825 | const char *path, /* I - Keychain path or @code NULL@ for default */ |
72d05bc9 MS |
826 | cups_array_t *credentials, /* I - Credentials */ |
827 | const char *common_name) /* I - Common name for credentials */ | |
828 | { | |
eb66bc71 | 829 | #ifdef HAVE_SECKEYCHAINOPEN |
88f1e9c8 | 830 | int ret = -1; /* Return value */ |
41e0907c | 831 | OSStatus err; /* Error info */ |
88f1e9c8 MS |
832 | char filename[1024]; /* Filename for keychain */ |
833 | SecKeychainRef keychain = NULL;/* Keychain reference */ | |
41e0907c | 834 | SecIdentitySearchRef search = NULL; /* Search reference */ |
88f1e9c8 | 835 | SecCertificateRef cert = NULL; /* Certificate */ |
88f1e9c8 | 836 | CFMutableDictionaryRef attrs = NULL; /* Attributes for add */ |
41e0907c MS |
837 | CFArrayRef list = NULL; /* Keychain list */ |
838 | ||
839 | ||
88f1e9c8 MS |
840 | DEBUG_printf(("httpSaveCredentials(path=\"%s\", credentials=%p, common_name=\"%s\")", path, credentials, common_name)); |
841 | if (!credentials) | |
41e0907c MS |
842 | goto cleanup; |
843 | ||
524c65e6 MS |
844 | if (!httpCredentialsAreValidForName(credentials, common_name)) |
845 | { | |
846 | DEBUG_puts("1httpSaveCredentials: Common name does not match."); | |
847 | return (-1); | |
848 | } | |
849 | ||
88f1e9c8 MS |
850 | if ((cert = http_cdsa_create_credential((http_credential_t *)cupsArrayFirst(credentials))) == NULL) |
851 | { | |
852 | DEBUG_puts("1httpSaveCredentials: Unable to create certificate."); | |
41e0907c | 853 | goto cleanup; |
88f1e9c8 | 854 | } |
41e0907c | 855 | |
88f1e9c8 | 856 | if (!path) |
005f7f1f | 857 | path = http_cdsa_default_path(filename, sizeof(filename)); |
2c85b752 | 858 | |
88f1e9c8 | 859 | if ((err = SecKeychainOpen(path, &keychain)) != noErr) |
2c85b752 | 860 | { |
88f1e9c8 MS |
861 | DEBUG_printf(("1httpSaveCredentials: SecKeychainOpen returned %d.", (int)err)); |
862 | goto cleanup; | |
2c85b752 | 863 | } |
2c85b752 | 864 | |
88f1e9c8 | 865 | if ((list = CFArrayCreate(kCFAllocatorDefault, (const void **)&keychain, 1, &kCFTypeArrayCallBacks)) == NULL) |
2c85b752 | 866 | { |
88f1e9c8 MS |
867 | DEBUG_puts("1httpSaveCredentials: Unable to create list of keychains."); |
868 | goto cleanup; | |
2c85b752 | 869 | } |
88f1e9c8 | 870 | |
88f1e9c8 MS |
871 | if ((attrs = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks)) == NULL) |
872 | { | |
873 | DEBUG_puts("1httpSaveCredentials: Unable to create dictionary."); | |
874 | goto cleanup; | |
2c85b752 MS |
875 | } |
876 | ||
88f1e9c8 | 877 | CFDictionaryAddValue(attrs, kSecClass, kSecClassCertificate); |
88f1e9c8 MS |
878 | CFDictionaryAddValue(attrs, kSecValueRef, cert); |
879 | CFDictionaryAddValue(attrs, kSecMatchSearchList, list); | |
2c85b752 | 880 | |
88f1e9c8 | 881 | /* Note: SecItemAdd consumes "attrs"... */ |
524c65e6 | 882 | err = SecItemAdd(attrs, NULL); |
88f1e9c8 | 883 | DEBUG_printf(("1httpSaveCredentials: SecItemAdd returned %d.", (int)err)); |
2c85b752 | 884 | |
88f1e9c8 | 885 | cleanup : |
2c85b752 | 886 | |
88f1e9c8 MS |
887 | if (list) |
888 | CFRelease(list); | |
889 | if (keychain) | |
890 | CFRelease(keychain); | |
891 | if (search) | |
892 | CFRelease(search); | |
893 | if (cert) | |
894 | CFRelease(cert); | |
2c85b752 | 895 | |
88f1e9c8 | 896 | DEBUG_printf(("1httpSaveCredentials: Returning %d.", ret)); |
2c85b752 | 897 | |
88f1e9c8 | 898 | return (ret); |
2c85b752 | 899 | |
88f1e9c8 MS |
900 | #else |
901 | (void)path; | |
902 | (void)credentials; | |
903 | (void)common_name; | |
2c85b752 | 904 | |
88f1e9c8 MS |
905 | return (-1); |
906 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 MS |
907 | } |
908 | ||
909 | ||
910 | /* | |
25731360 | 911 | * '_httpTLSInitialize()' - Initialize the TLS stack. |
2c85b752 MS |
912 | */ |
913 | ||
25731360 MS |
914 | void |
915 | _httpTLSInitialize(void) | |
2c85b752 MS |
916 | { |
917 | /* | |
918 | * Nothing to do... | |
919 | */ | |
920 | } | |
921 | ||
922 | ||
923 | /* | |
25731360 | 924 | * '_httpTLSPending()' - Return the number of pending TLS-encrypted bytes. |
2c85b752 MS |
925 | */ |
926 | ||
25731360 MS |
927 | size_t |
928 | _httpTLSPending(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
929 | { |
930 | size_t bytes; /* Bytes that are available */ | |
931 | ||
932 | ||
933 | if (!SSLGetBufferedReadSize(http->tls, &bytes)) | |
934 | return (bytes); | |
935 | ||
936 | return (0); | |
937 | } | |
938 | ||
939 | ||
940 | /* | |
25731360 | 941 | * '_httpTLSRead()' - Read from a SSL/TLS connection. |
2c85b752 MS |
942 | */ |
943 | ||
25731360 MS |
944 | int /* O - Bytes read */ |
945 | _httpTLSRead(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
946 | char *buf, /* I - Buffer to store data */ |
947 | int len) /* I - Length of buffer */ | |
948 | { | |
949 | int result; /* Return value */ | |
950 | OSStatus error; /* Error info */ | |
951 | size_t processed; /* Number of bytes processed */ | |
952 | ||
953 | ||
7e86f2f6 | 954 | error = SSLRead(http->tls, buf, (size_t)len, &processed); |
25731360 | 955 | DEBUG_printf(("6_httpTLSRead: error=%d, processed=%d", (int)error, |
2c85b752 MS |
956 | (int)processed)); |
957 | switch (error) | |
958 | { | |
959 | case 0 : | |
960 | result = (int)processed; | |
961 | break; | |
962 | ||
963 | case errSSLWouldBlock : | |
964 | if (processed) | |
965 | result = (int)processed; | |
966 | else | |
967 | { | |
968 | result = -1; | |
969 | errno = EINTR; | |
970 | } | |
971 | break; | |
972 | ||
973 | case errSSLClosedGraceful : | |
974 | default : | |
975 | if (processed) | |
976 | result = (int)processed; | |
977 | else | |
978 | { | |
979 | result = -1; | |
980 | errno = EPIPE; | |
981 | } | |
982 | break; | |
983 | } | |
984 | ||
985 | return (result); | |
986 | } | |
987 | ||
988 | ||
2c85b752 | 989 | /* |
25731360 | 990 | * '_httpTLSStart()' - Set up SSL/TLS support on a connection. |
2c85b752 MS |
991 | */ |
992 | ||
25731360 MS |
993 | int /* O - 0 on success, -1 on failure */ |
994 | _httpTLSStart(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
995 | { |
996 | char hostname[256], /* Hostname */ | |
997 | *hostptr; /* Pointer into hostname */ | |
998 | _cups_globals_t *cg = _cupsGlobals(); | |
999 | /* Pointer to library globals */ | |
1000 | OSStatus error; /* Error code */ | |
1001 | const char *message = NULL;/* Error message */ | |
1002 | cups_array_t *credentials; /* Credentials array */ | |
1003 | cups_array_t *names; /* CUPS distinguished names */ | |
1004 | CFArrayRef dn_array; /* CF distinguished names array */ | |
1005 | CFIndex count; /* Number of credentials */ | |
1006 | CFDataRef data; /* Certificate data */ | |
1007 | int i; /* Looping var */ | |
1008 | http_credential_t *credential; /* Credential data */ | |
1009 | ||
1010 | ||
25731360 | 1011 | DEBUG_printf(("7_httpTLSStart(http=%p)", http)); |
2c85b752 | 1012 | |
c913d726 | 1013 | #ifdef HAVE_SECKEYCHAINOPEN |
41e0907c | 1014 | if (http->mode == _HTTP_MODE_SERVER && !tls_keychain) |
c913d726 MS |
1015 | #else |
1016 | if (http->mode == _HTTP_MODE_SERVER) | |
1017 | #endif /* HAVE_SECKEYCHAINOPEN */ | |
2c85b752 | 1018 | { |
25731360 | 1019 | DEBUG_puts("4_httpTLSStart: cupsSetServerCredentials not called."); |
41e0907c MS |
1020 | http->error = errno = EINVAL; |
1021 | http->status = HTTP_STATUS_ERROR; | |
1022 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Server credentials not set."), 1); | |
2c85b752 | 1023 | |
41e0907c | 1024 | return (-1); |
2c85b752 MS |
1025 | } |
1026 | ||
72d05bc9 | 1027 | if ((http->tls = SSLCreateContext(kCFAllocatorDefault, http->mode == _HTTP_MODE_CLIENT ? kSSLClientSide : kSSLServerSide, kSSLStreamType)) == NULL) |
2c85b752 | 1028 | { |
25731360 | 1029 | DEBUG_puts("4_httpTLSStart: SSLCreateContext failed."); |
2c85b752 MS |
1030 | http->error = errno = ENOMEM; |
1031 | http->status = HTTP_STATUS_ERROR; | |
1032 | _cupsSetHTTPError(HTTP_STATUS_ERROR); | |
1033 | ||
1034 | return (-1); | |
1035 | } | |
1036 | ||
1037 | error = SSLSetConnection(http->tls, http); | |
25731360 | 1038 | DEBUG_printf(("4_httpTLSStart: SSLSetConnection, error=%d", (int)error)); |
2c85b752 MS |
1039 | |
1040 | if (!error) | |
1041 | { | |
1042 | error = SSLSetIOFuncs(http->tls, http_cdsa_read, http_cdsa_write); | |
25731360 | 1043 | DEBUG_printf(("4_httpTLSStart: SSLSetIOFuncs, error=%d", (int)error)); |
2c85b752 MS |
1044 | } |
1045 | ||
1046 | if (!error) | |
1047 | { | |
1048 | error = SSLSetSessionOption(http->tls, kSSLSessionOptionBreakOnServerAuth, | |
1049 | true); | |
25731360 | 1050 | DEBUG_printf(("4_httpTLSStart: SSLSetSessionOption, error=%d", |
2c85b752 MS |
1051 | (int)error)); |
1052 | } | |
1053 | ||
41e0907c | 1054 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1055 | { |
41e0907c MS |
1056 | /* |
1057 | * Client: set client-side credentials, if any... | |
1058 | */ | |
1059 | ||
2c85b752 MS |
1060 | if (cg->client_cert_cb) |
1061 | { | |
1062 | error = SSLSetSessionOption(http->tls, | |
1063 | kSSLSessionOptionBreakOnCertRequested, true); | |
25731360 | 1064 | DEBUG_printf(("4_httpTLSStart: kSSLSessionOptionBreakOnCertRequested, " |
2c85b752 MS |
1065 | "error=%d", (int)error)); |
1066 | } | |
1067 | else | |
1068 | { | |
88f1e9c8 MS |
1069 | error = http_cdsa_set_credentials(http); |
1070 | DEBUG_printf(("4_httpTLSStart: http_cdsa_set_credentials, error=%d", | |
2c85b752 MS |
1071 | (int)error)); |
1072 | } | |
1073 | } | |
41e0907c MS |
1074 | else if (!error) |
1075 | { | |
1076 | /* | |
1077 | * Server: find/create a certificate for TLS... | |
1078 | */ | |
1079 | ||
1080 | if (http->fields[HTTP_FIELD_HOST][0]) | |
1081 | { | |
1082 | /* | |
1083 | * Use hostname for TLS upgrade... | |
1084 | */ | |
1085 | ||
1086 | strlcpy(hostname, http->fields[HTTP_FIELD_HOST], sizeof(hostname)); | |
1087 | } | |
1088 | else | |
1089 | { | |
1090 | /* | |
1091 | * Resolve hostname from connection address... | |
1092 | */ | |
1093 | ||
1094 | http_addr_t addr; /* Connection address */ | |
1095 | socklen_t addrlen; /* Length of address */ | |
1096 | ||
1097 | addrlen = sizeof(addr); | |
1098 | if (getsockname(http->fd, (struct sockaddr *)&addr, &addrlen)) | |
1099 | { | |
25731360 | 1100 | DEBUG_printf(("4_httpTLSStart: Unable to get socket address: %s", strerror(errno))); |
41e0907c MS |
1101 | hostname[0] = '\0'; |
1102 | } | |
1103 | else if (httpAddrLocalhost(&addr)) | |
1104 | hostname[0] = '\0'; | |
1105 | else | |
a27a134a MS |
1106 | { |
1107 | httpAddrLookup(&addr, hostname, sizeof(hostname)); | |
25731360 | 1108 | DEBUG_printf(("4_httpTLSStart: Resolved socket address to \"%s\".", hostname)); |
a27a134a | 1109 | } |
41e0907c MS |
1110 | } |
1111 | ||
eb66bc71 | 1112 | #ifdef HAVE_SECKEYCHAINOPEN |
a27a134a MS |
1113 | if (isdigit(hostname[0] & 255) || hostname[0] == '[') |
1114 | hostname[0] = '\0'; /* Don't allow numeric addresses */ | |
1115 | ||
41e0907c MS |
1116 | if (hostname[0]) |
1117 | http->tls_credentials = http_cdsa_copy_server(hostname); | |
1118 | else if (tls_common_name) | |
1119 | http->tls_credentials = http_cdsa_copy_server(tls_common_name); | |
1120 | ||
1121 | if (!http->tls_credentials && tls_auto_create && (hostname[0] || tls_common_name)) | |
1122 | { | |
25731360 | 1123 | DEBUG_printf(("4_httpTLSStart: Auto-create credentials for \"%s\".", hostname[0] ? hostname : tls_common_name)); |
41e0907c MS |
1124 | |
1125 | if (!cupsMakeServerCredentials(tls_keypath, hostname[0] ? hostname : tls_common_name, 0, NULL, time(NULL) + 365 * 86400)) | |
1126 | { | |
25731360 | 1127 | DEBUG_puts("4_httpTLSStart: cupsMakeServerCredentials failed."); |
41e0907c MS |
1128 | http->error = errno = EINVAL; |
1129 | http->status = HTTP_STATUS_ERROR; | |
1130 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to create server credentials."), 1); | |
1131 | ||
1132 | return (-1); | |
1133 | } | |
1134 | ||
1135 | http->tls_credentials = http_cdsa_copy_server(hostname[0] ? hostname : tls_common_name); | |
1136 | } | |
eb66bc71 | 1137 | #endif /* HAVE_SECKEYCHAINOPEN */ |
41e0907c MS |
1138 | |
1139 | if (!http->tls_credentials) | |
1140 | { | |
25731360 | 1141 | DEBUG_puts("4_httpTLSStart: Unable to find server credentials."); |
41e0907c MS |
1142 | http->error = errno = EINVAL; |
1143 | http->status = HTTP_STATUS_ERROR; | |
1144 | _cupsSetError(IPP_STATUS_ERROR_INTERNAL, _("Unable to find server credentials."), 1); | |
1145 | ||
1146 | return (-1); | |
1147 | } | |
1148 | ||
1149 | error = SSLSetCertificate(http->tls, http->tls_credentials); | |
1150 | ||
25731360 | 1151 | DEBUG_printf(("4_httpTLSStart: SSLSetCertificate, error=%d", (int)error)); |
41e0907c MS |
1152 | } |
1153 | ||
25731360 | 1154 | DEBUG_printf(("4_httpTLSStart: tls_credentials=%p", http->tls_credentials)); |
2c85b752 MS |
1155 | |
1156 | /* | |
1157 | * Let the server know which hostname/domain we are trying to connect to | |
1158 | * in case it wants to serve up a certificate with a matching common name. | |
1159 | */ | |
1160 | ||
41e0907c | 1161 | if (!error && http->mode == _HTTP_MODE_CLIENT) |
2c85b752 | 1162 | { |
41e0907c MS |
1163 | /* |
1164 | * Client: get the hostname to use for TLS... | |
1165 | */ | |
1166 | ||
1167 | if (httpAddrLocalhost(http->hostaddr)) | |
1168 | { | |
1169 | strlcpy(hostname, "localhost", sizeof(hostname)); | |
1170 | } | |
1171 | else | |
1172 | { | |
1173 | /* | |
1174 | * Otherwise make sure the hostname we have does not end in a trailing dot. | |
1175 | */ | |
1176 | ||
1177 | strlcpy(hostname, http->hostname, sizeof(hostname)); | |
1178 | if ((hostptr = hostname + strlen(hostname) - 1) >= hostname && | |
1179 | *hostptr == '.') | |
1180 | *hostptr = '\0'; | |
1181 | } | |
1182 | ||
2c85b752 MS |
1183 | error = SSLSetPeerDomainName(http->tls, hostname, strlen(hostname)); |
1184 | ||
25731360 | 1185 | DEBUG_printf(("4_httpTLSStart: SSLSetPeerDomainName, error=%d", (int)error)); |
2c85b752 MS |
1186 | } |
1187 | ||
1188 | if (!error) | |
1189 | { | |
1190 | int done = 0; /* Are we done yet? */ | |
1191 | ||
1192 | while (!error && !done) | |
1193 | { | |
1194 | error = SSLHandshake(http->tls); | |
1195 | ||
25731360 | 1196 | DEBUG_printf(("4_httpTLSStart: SSLHandshake returned %d.", (int)error)); |
2c85b752 MS |
1197 | |
1198 | switch (error) | |
1199 | { | |
1200 | case noErr : | |
1201 | done = 1; | |
1202 | break; | |
1203 | ||
1204 | case errSSLWouldBlock : | |
1205 | error = noErr; /* Force a retry */ | |
1206 | usleep(1000); /* in 1 millisecond */ | |
1207 | break; | |
1208 | ||
1209 | case errSSLServerAuthCompleted : | |
1210 | error = 0; | |
1211 | if (cg->server_cert_cb) | |
1212 | { | |
1213 | error = httpCopyCredentials(http, &credentials); | |
1214 | if (!error) | |
1215 | { | |
1216 | error = (cg->server_cert_cb)(http, http->tls, credentials, | |
1217 | cg->server_cert_data); | |
1218 | httpFreeCredentials(credentials); | |
1219 | } | |
1220 | ||
25731360 | 1221 | DEBUG_printf(("4_httpTLSStart: Server certificate callback " |
2c85b752 MS |
1222 | "returned %d.", (int)error)); |
1223 | } | |
1224 | break; | |
1225 | ||
1226 | case errSSLClientCertRequested : | |
1227 | error = 0; | |
1228 | ||
1229 | if (cg->client_cert_cb) | |
1230 | { | |
1231 | names = NULL; | |
1232 | if (!(error = SSLCopyDistinguishedNames(http->tls, &dn_array)) && | |
1233 | dn_array) | |
1234 | { | |
1235 | if ((names = cupsArrayNew(NULL, NULL)) != NULL) | |
1236 | { | |
1237 | for (i = 0, count = CFArrayGetCount(dn_array); i < count; i++) | |
1238 | { | |
1239 | data = (CFDataRef)CFArrayGetValueAtIndex(dn_array, i); | |
1240 | ||
1241 | if ((credential = malloc(sizeof(*credential))) != NULL) | |
1242 | { | |
7e86f2f6 | 1243 | credential->datalen = (size_t)CFDataGetLength(data); |
2c85b752 MS |
1244 | if ((credential->data = malloc(credential->datalen))) |
1245 | { | |
1246 | memcpy((void *)credential->data, CFDataGetBytePtr(data), | |
1247 | credential->datalen); | |
1248 | cupsArrayAdd(names, credential); | |
1249 | } | |
1250 | else | |
1251 | free(credential); | |
1252 | } | |
1253 | } | |
1254 | } | |
1255 | ||
1256 | CFRelease(dn_array); | |
1257 | } | |
1258 | ||
1259 | if (!error) | |
1260 | { | |
1261 | error = (cg->client_cert_cb)(http, http->tls, names, | |
1262 | cg->client_cert_data); | |
1263 | ||
25731360 | 1264 | DEBUG_printf(("4_httpTLSStart: Client certificate callback " |
2c85b752 MS |
1265 | "returned %d.", (int)error)); |
1266 | } | |
1267 | ||
1268 | httpFreeCredentials(names); | |
1269 | } | |
1270 | break; | |
1271 | ||
1272 | case errSSLUnknownRootCert : | |
1273 | message = _("Unable to establish a secure connection to host " | |
1274 | "(untrusted certificate)."); | |
1275 | break; | |
1276 | ||
1277 | case errSSLNoRootCert : | |
1278 | message = _("Unable to establish a secure connection to host " | |
1279 | "(self-signed certificate)."); | |
1280 | break; | |
1281 | ||
1282 | case errSSLCertExpired : | |
1283 | message = _("Unable to establish a secure connection to host " | |
1284 | "(expired certificate)."); | |
1285 | break; | |
1286 | ||
1287 | case errSSLCertNotYetValid : | |
1288 | message = _("Unable to establish a secure connection to host " | |
1289 | "(certificate not yet valid)."); | |
1290 | break; | |
1291 | ||
1292 | case errSSLHostNameMismatch : | |
1293 | message = _("Unable to establish a secure connection to host " | |
1294 | "(host name mismatch)."); | |
1295 | break; | |
1296 | ||
1297 | case errSSLXCertChainInvalid : | |
1298 | message = _("Unable to establish a secure connection to host " | |
1299 | "(certificate chain invalid)."); | |
1300 | break; | |
1301 | ||
1302 | case errSSLConnectionRefused : | |
1303 | message = _("Unable to establish a secure connection to host " | |
1304 | "(peer dropped connection before responding)."); | |
1305 | break; | |
1306 | ||
1307 | default : | |
1308 | break; | |
1309 | } | |
1310 | } | |
1311 | } | |
1312 | ||
1313 | if (error) | |
1314 | { | |
1315 | http->error = error; | |
1316 | http->status = HTTP_STATUS_ERROR; | |
1317 | errno = ECONNREFUSED; | |
1318 | ||
1319 | CFRelease(http->tls); | |
1320 | http->tls = NULL; | |
1321 | ||
1322 | /* | |
1323 | * If an error string wasn't set by the callbacks use a generic one... | |
1324 | */ | |
1325 | ||
1326 | if (!message) | |
1327 | #ifdef HAVE_CSSMERRORSTRING | |
1328 | message = cssmErrorString(error); | |
1329 | #else | |
1330 | message = _("Unable to establish a secure connection to host."); | |
1331 | #endif /* HAVE_CSSMERRORSTRING */ | |
1332 | ||
1333 | _cupsSetError(IPP_STATUS_ERROR_CUPS_PKI, message, 1); | |
1334 | ||
1335 | return (-1); | |
1336 | } | |
1337 | ||
1338 | return (0); | |
1339 | } | |
1340 | ||
1341 | ||
1342 | /* | |
25731360 | 1343 | * '_httpTLSStop()' - Shut down SSL/TLS on a connection. |
2c85b752 MS |
1344 | */ |
1345 | ||
25731360 MS |
1346 | void |
1347 | _httpTLSStop(http_t *http) /* I - HTTP connection */ | |
2c85b752 MS |
1348 | { |
1349 | while (SSLClose(http->tls) == errSSLWouldBlock) | |
1350 | usleep(1000); | |
1351 | ||
1352 | CFRelease(http->tls); | |
1353 | ||
1354 | if (http->tls_credentials) | |
1355 | CFRelease(http->tls_credentials); | |
1356 | ||
1357 | http->tls = NULL; | |
1358 | http->tls_credentials = NULL; | |
1359 | } | |
1360 | ||
1361 | ||
1362 | /* | |
25731360 | 1363 | * '_httpTLSWrite()' - Write to a SSL/TLS connection. |
2c85b752 MS |
1364 | */ |
1365 | ||
25731360 MS |
1366 | int /* O - Bytes written */ |
1367 | _httpTLSWrite(http_t *http, /* I - HTTP connection */ | |
2c85b752 MS |
1368 | const char *buf, /* I - Buffer holding data */ |
1369 | int len) /* I - Length of buffer */ | |
1370 | { | |
1371 | ssize_t result; /* Return value */ | |
1372 | OSStatus error; /* Error info */ | |
1373 | size_t processed; /* Number of bytes processed */ | |
1374 | ||
1375 | ||
25731360 | 1376 | DEBUG_printf(("2_httpTLSWrite(http=%p, buf=%p, len=%d)", http, buf, len)); |
2c85b752 | 1377 | |
7e86f2f6 | 1378 | error = SSLWrite(http->tls, buf, (size_t)len, &processed); |
2c85b752 MS |
1379 | |
1380 | switch (error) | |
1381 | { | |
1382 | case 0 : | |
1383 | result = (int)processed; | |
1384 | break; | |
1385 | ||
1386 | case errSSLWouldBlock : | |
1387 | if (processed) | |
1388 | { | |
1389 | result = (int)processed; | |
1390 | } | |
1391 | else | |
1392 | { | |
1393 | result = -1; | |
1394 | errno = EINTR; | |
1395 | } | |
1396 | break; | |
1397 | ||
1398 | case errSSLClosedGraceful : | |
1399 | default : | |
1400 | if (processed) | |
1401 | { | |
1402 | result = (int)processed; | |
1403 | } | |
1404 | else | |
1405 | { | |
1406 | result = -1; | |
1407 | errno = EPIPE; | |
1408 | } | |
1409 | break; | |
1410 | } | |
1411 | ||
25731360 | 1412 | DEBUG_printf(("3_httpTLSWrite: Returning %d.", (int)result)); |
2c85b752 MS |
1413 | |
1414 | return ((int)result); | |
1415 | } | |
1416 | ||
1417 | ||
88f1e9c8 | 1418 | #ifdef HAVE_SECKEYCHAINOPEN |
2c85b752 | 1419 | /* |
88f1e9c8 | 1420 | * 'http_cdsa_copy_server()' - Find and copy server credentials from the keychain. |
2c85b752 MS |
1421 | */ |
1422 | ||
88f1e9c8 MS |
1423 | static CFArrayRef /* O - Array of certificates or NULL */ |
1424 | http_cdsa_copy_server( | |
1425 | const char *common_name) /* I - Server's hostname */ | |
2c85b752 | 1426 | { |
88f1e9c8 MS |
1427 | OSStatus err; /* Error info */ |
1428 | SecIdentitySearchRef search = NULL; /* Search reference */ | |
1429 | SecIdentityRef identity = NULL;/* Identity */ | |
1430 | CFArrayRef certificates = NULL; | |
1431 | /* Certificate array */ | |
1432 | SecPolicyRef policy = NULL; /* Policy ref */ | |
1433 | CFStringRef cfcommon_name = NULL; | |
1434 | /* Server name */ | |
1435 | CFMutableDictionaryRef query = NULL; /* Query qualifiers */ | |
1436 | CFArrayRef list = NULL; /* Keychain list */ | |
2c85b752 | 1437 | |
2c85b752 | 1438 | |
88f1e9c8 | 1439 | cfcommon_name = CFStringCreateWithCString(kCFAllocatorDefault, common_name, kCFStringEncodingUTF8); |
2c85b752 | 1440 | |
88f1e9c8 MS |
1441 | policy = SecPolicyCreateSSL(1, cfcommon_name); |
1442 | ||
1443 | if (cfcommon_name) | |
1444 | CFRelease(cfcommon_name); | |
1445 | ||
1446 | if (!policy) | |
1447 | goto cleanup; | |
1448 | ||
1449 | if (!(query = CFDictionaryCreateMutable(kCFAllocatorDefault, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks))) | |
1450 | goto cleanup; | |
1451 | ||
f93b32b6 MS |
1452 | _cupsMutexLock(&tls_mutex); |
1453 | ||
88f1e9c8 MS |
1454 | list = CFArrayCreate(kCFAllocatorDefault, (const void **)&tls_keychain, 1, &kCFTypeArrayCallBacks); |
1455 | ||
1456 | CFDictionaryAddValue(query, kSecClass, kSecClassIdentity); | |
1457 | CFDictionaryAddValue(query, kSecMatchPolicy, policy); | |
1458 | CFDictionaryAddValue(query, kSecReturnRef, kCFBooleanTrue); | |
1459 | CFDictionaryAddValue(query, kSecMatchLimit, kSecMatchLimitOne); | |
1460 | CFDictionaryAddValue(query, kSecMatchSearchList, list); | |
1461 | ||
1462 | CFRelease(list); | |
1463 | ||
1464 | err = SecItemCopyMatching(query, (CFTypeRef *)&identity); | |
1465 | ||
f93b32b6 MS |
1466 | _cupsMutexUnlock(&tls_mutex); |
1467 | ||
88f1e9c8 MS |
1468 | if (err) |
1469 | goto cleanup; | |
1470 | ||
1471 | if (CFGetTypeID(identity) != SecIdentityGetTypeID()) | |
1472 | goto cleanup; | |
1473 | ||
1474 | if ((certificates = CFArrayCreate(NULL, (const void **)&identity, 1, &kCFTypeArrayCallBacks)) == NULL) | |
1475 | goto cleanup; | |
1476 | ||
1477 | cleanup : | |
1478 | ||
1479 | if (search) | |
1480 | CFRelease(search); | |
1481 | if (identity) | |
1482 | CFRelease(identity); | |
1483 | ||
1484 | if (policy) | |
1485 | CFRelease(policy); | |
1486 | if (query) | |
1487 | CFRelease(query); | |
1488 | ||
1489 | return (certificates); | |
2c85b752 | 1490 | } |
88f1e9c8 | 1491 | #endif /* HAVE_SECKEYCHAINOPEN */ |
2c85b752 MS |
1492 | |
1493 | ||
005f7f1f MS |
1494 | /* |
1495 | * 'http_cdsa_default_path()' - Get the default keychain path. | |
1496 | */ | |
1497 | ||
1498 | static const char * /* O - Keychain path */ | |
1499 | http_cdsa_default_path(char *buffer, /* I - Path buffer */ | |
1500 | size_t bufsize) /* I - Size of buffer */ | |
1501 | { | |
1502 | const char *home = getenv("HOME"); /* HOME environment variable */ | |
1503 | ||
1504 | ||
1505 | if (getuid() && home) | |
1506 | snprintf(buffer, bufsize, "%s/Library/Keychains/login.keychain", home); | |
1507 | else | |
1508 | strlcpy(buffer, "/Library/Keychains/System.keychain", bufsize); | |
1509 | ||
1510 | DEBUG_printf(("1http_cdsa_default_path: Using default path \"%s\".", buffer)); | |
1511 | ||
1512 | return (buffer); | |
1513 | } | |
1514 | ||
1515 | ||
2c85b752 | 1516 | /* |
88f1e9c8 | 1517 | * 'http_cdsa_read()' - Read function for the CDSA library. |
2c85b752 MS |
1518 | */ |
1519 | ||
88f1e9c8 MS |
1520 | static OSStatus /* O - -1 on error, 0 on success */ |
1521 | http_cdsa_read( | |
1522 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1523 | void *data, /* I - Data buffer */ | |
1524 | size_t *dataLength) /* IO - Number of bytes */ | |
2c85b752 | 1525 | { |
88f1e9c8 MS |
1526 | OSStatus result; /* Return value */ |
1527 | ssize_t bytes; /* Number of bytes read */ | |
1528 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1529 | |
2c85b752 | 1530 | |
88f1e9c8 | 1531 | http = (http_t *)connection; |
2c85b752 | 1532 | |
88f1e9c8 | 1533 | if (!http->blocking) |
2c85b752 MS |
1534 | { |
1535 | /* | |
88f1e9c8 | 1536 | * Make sure we have data before we read... |
2c85b752 MS |
1537 | */ |
1538 | ||
88f1e9c8 MS |
1539 | while (!_httpWait(http, http->wait_value, 0)) |
1540 | { | |
1541 | if (http->timeout_cb && (*http->timeout_cb)(http, http->timeout_data)) | |
1542 | continue; | |
1543 | ||
1544 | http->error = ETIMEDOUT; | |
1545 | return (-1); | |
1546 | } | |
2c85b752 MS |
1547 | } |
1548 | ||
88f1e9c8 | 1549 | do |
2c85b752 | 1550 | { |
88f1e9c8 | 1551 | bytes = recv(http->fd, data, *dataLength, 0); |
2c85b752 | 1552 | } |
88f1e9c8 | 1553 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); |
2c85b752 | 1554 | |
88f1e9c8 MS |
1555 | if ((size_t)bytes == *dataLength) |
1556 | { | |
1557 | result = 0; | |
1558 | } | |
1559 | else if (bytes > 0) | |
1560 | { | |
1561 | *dataLength = (size_t)bytes; | |
1562 | result = errSSLWouldBlock; | |
1563 | } | |
1564 | else | |
1565 | { | |
1566 | *dataLength = 0; | |
2c85b752 | 1567 | |
88f1e9c8 MS |
1568 | if (bytes == 0) |
1569 | result = errSSLClosedGraceful; | |
1570 | else if (errno == EAGAIN) | |
1571 | result = errSSLWouldBlock; | |
1572 | else | |
1573 | result = errSSLClosedAbort; | |
1574 | } | |
2c85b752 | 1575 | |
88f1e9c8 MS |
1576 | return (result); |
1577 | } | |
2c85b752 | 1578 | |
2c85b752 | 1579 | |
88f1e9c8 MS |
1580 | /* |
1581 | * 'http_cdsa_set_credentials()' - Set the TLS credentials. | |
1582 | */ | |
2c85b752 | 1583 | |
88f1e9c8 MS |
1584 | static int /* O - Status of connection */ |
1585 | http_cdsa_set_credentials(http_t *http) /* I - HTTP connection */ | |
1586 | { | |
1587 | _cups_globals_t *cg = _cupsGlobals(); /* Pointer to library globals */ | |
1588 | OSStatus error = 0; /* Error code */ | |
1589 | http_tls_credentials_t credentials = NULL; | |
1590 | /* TLS credentials */ | |
2c85b752 | 1591 | |
2c85b752 | 1592 | |
88f1e9c8 | 1593 | DEBUG_printf(("7http_tls_set_credentials(%p)", http)); |
2c85b752 | 1594 | |
88f1e9c8 MS |
1595 | /* |
1596 | * Prefer connection specific credentials... | |
1597 | */ | |
2c85b752 | 1598 | |
88f1e9c8 MS |
1599 | if ((credentials = http->tls_credentials) == NULL) |
1600 | credentials = cg->tls_credentials; | |
2c85b752 | 1601 | |
88f1e9c8 MS |
1602 | if (credentials) |
1603 | { | |
1604 | error = SSLSetCertificate(http->tls, credentials); | |
1605 | DEBUG_printf(("4http_tls_set_credentials: SSLSetCertificate, error=%d", | |
1606 | (int)error)); | |
2c85b752 | 1607 | } |
88f1e9c8 MS |
1608 | else |
1609 | DEBUG_puts("4http_tls_set_credentials: No credentials to set."); | |
1610 | ||
1611 | return (error); | |
1612 | } | |
1613 | ||
1614 | ||
1615 | /* | |
1616 | * 'http_cdsa_write()' - Write function for the CDSA library. | |
1617 | */ | |
1618 | ||
1619 | static OSStatus /* O - -1 on error, 0 on success */ | |
1620 | http_cdsa_write( | |
1621 | SSLConnectionRef connection, /* I - SSL/TLS connection */ | |
1622 | const void *data, /* I - Data buffer */ | |
1623 | size_t *dataLength) /* IO - Number of bytes */ | |
1624 | { | |
1625 | OSStatus result; /* Return value */ | |
1626 | ssize_t bytes; /* Number of bytes read */ | |
1627 | http_t *http; /* HTTP connection */ | |
2c85b752 | 1628 | |
2c85b752 | 1629 | |
88f1e9c8 MS |
1630 | http = (http_t *)connection; |
1631 | ||
1632 | do | |
2c85b752 | 1633 | { |
88f1e9c8 MS |
1634 | bytes = write(http->fd, data, *dataLength); |
1635 | } | |
1636 | while (bytes == -1 && (errno == EINTR || errno == EAGAIN)); | |
1637 | ||
1638 | if ((size_t)bytes == *dataLength) | |
1639 | { | |
1640 | result = 0; | |
1641 | } | |
1642 | else if (bytes >= 0) | |
1643 | { | |
1644 | *dataLength = (size_t)bytes; | |
1645 | result = errSSLWouldBlock; | |
2c85b752 MS |
1646 | } |
1647 | else | |
88f1e9c8 MS |
1648 | { |
1649 | *dataLength = 0; | |
2c85b752 | 1650 | |
88f1e9c8 MS |
1651 | if (errno == EAGAIN) |
1652 | result = errSSLWouldBlock; | |
1653 | else | |
1654 | result = errSSLClosedAbort; | |
1655 | } | |
1656 | ||
1657 | return (result); | |
2c85b752 | 1658 | } |
2c85b752 MS |
1659 | |
1660 | ||
1661 | /* | |
1662 | * End of "$Id$". | |
1663 | */ |